Door hinge



May 23, 1944. J, FAITHFULL noon HINGE Filed June 18, 1943 INVENTOR Jomv Fq/ nyFoLA BY A ORNEY ult'llbbLLLHHiLUtO mun. 'm .m'.

Patented May 23, 1944 UNITED STATES PATENT OFFICE 5 Claims.

This invention relates to devices for securing doors to beams at the entrance to stairways, chutes or the like, leading to basements, cellars, store rooms and the like.

The heavy sheet metal plates, constituting the doors, the angle iron beams forming the frames, and the hinges connecting the same, when subjected to the elements and usage. fail in the course of time, requiring replacement.

To replace such parts, particularly the hinges, has heretofore required the exercise of considerable labor and expense.

It is, therefore, an object of the invention to provide a novel form of hinge device for connecting doors to beams, in suchmannerthat' the hinge p intle'may' 'atany time be readily removed,

withbiit disturbing the other parts or the setting in which they are embedded.

A further object is in the provision of curved hinge pins, readily removable, in case of injury to themselves, or connected parts, and replaceable at negligible expense.

These valuable objects, and others which will later become apparent, are accomplished by the simple, novel and practical construction, combination and arrangements of parts hereinafter described, and illust ated in the accompanying drawing, constituting a component part of this disclosure and in which:

Fig. 1 is a fragmentary top plan view of an embodiment of the invention, parts being shown in section,

Fig. 2 is a transverse sectional view taken on line 2-2 of Fig. 1, in the direction of the arrows,

Fig, 3 is a fragmentary bottom plan view of the form of invention shown in Fig. 1,

Fig. 4 is a perspective view of a hinge bracket, forming part of the invention,

Fig. 5 is a fragmentary perspective view of an end portion of an angle iron beam embodying the invention, and

Fig. 6 is a perspective view of a spring carrying bracket which may be incorporated in the structure of my invention shown in Figs. 1-3.

As shown in the drawing, my invention is adapted to pivotally secure the doors Ill and I l to beams I2 embedded in concrete C or the like, said doors leading to a stairway or lower level opening S. The beams I2, conventionally two in number, are embedded in the concrete C so as to define the two margins of the opening S at right angles to the building or other structure adjacent which said opening is located, the front margin of the opening being preferably defined by marginal member M. The doors l0 and II are pivotally secured to the beams l2 by the device shown in the drawing, each of said doors being secured to its beam by a similar arrangement so that a description of the door 10 and its pivot mechanism will suffice for both doors.

The door I0 is preferably provided with a bar It secured to the underside thereof in any desired or convenient manner, as by spot welding, or by bolts or the like, the free end of the bar l4 being provided with an aperture for the reception of the hinge pintle IS, the latter being preferably of curved outline and resting in the bore l5 of the hinge bracket IS, the latter being preferably secured to the beam l2 by welding the same thereto or by passing bolts or the like I! through apertures IS in the bracket and apertures I 9 provided in the beam l2.

The ends of the hinge pintle 13 are preferably threaded as at 13' and protrude through apertures 20 in the beam I! so that by threading nuts 2| over the threaded ends l3 of the hinge pintle the latter will be secured to the beam l2. It is preferable to form the curved bore 15 in the hinge bracket I6 of greater cross-sectional diameter than the diameter of the hinge pintle 13 so that the latter may be readily removed from the bore l5. Assuming, for example, that the hinge pintle has become broken due to usage and the elements, by merely loosening one of the nuts 2|. the pintle may be readily withdrawn from the bore IS.

The bracket 16 is provided with the slot 22 therein intersecting the bore 15 and in open communication therewith for the reception of the free end of the bar l4 which also passes through a similar slot 23 in the beam l2. If desired, each beam l2 may be provided with apertures 19 and 20 and slot 23 adjacent each of the ends of the beam so that each of the doors I0 and II will be secured to its beam by a pair of hinge pintles 13 secured in a pair of brackets 16.

If desired, the bar It may be provided with a shoulder portion 24 at its free end so that the latter may have registry with the underside of the beam 12 as clearly shown in Fig. 2 to limit the downward movement of the door Ill. If desired, this feature may be dispensed with and the same end obtained by other expedients.

It will be apparent that should the bar H become broken, the door may be readily removed from the beam l2 by simply loosening one or both of the nuts 2| of the hinge pintle l3 and removing said hinge pin so that the door may be readily lifted for repair or replacement of the bar I4.

I have previously referred to the manner of removing the hinge pintle for repair or replacement so that it will be obvious that my invention provides a means whereby, after the doors have been initially installed, those parts which ordinarily break because of the elements and usage, may be readily replaced without the necessity of breaking the concrete C, and in a simple and inexpensive manner.

If desired, the bore I may be grooved so as to snugly receive the pintle I3, when the nuts 2| are drawn up tightly.

It is preferable that the bore I5 of the bracket I6 be of greater diameter than the hinge pintle [3 for the purpose previously explained.

My invention enables the easy assembly and installation of doors leading to lower levels and disassembly thereof as may be desired from time to time.

My invention is particularly adapted for application to doors intended to be normally disposed in a horizontal plane for acces to lower levels. However, the invention is adapted equally for use in connection with doors which are normally vertically or otherwise disposed.

The invention is also adapted to be carried out by a reversal of the parts, in which case, the bar I4 would be secured to the beam I2 and the bracket I6 tothe door II].

If desired, spring plate 25 may b provided to i assist in the initial raising of the doors, said spring plate being provided with a medial recess 25 and with studs 26 or the like adapted to have registry with the apertures of the beam I2 as shown in Fig. 1 and having forked, open bosses 21 thereon for the reception of the ends of the hinge pintle I3 as shown in Fig. 1.

If the spring plat 25 is used in conjunction with the hinge bracket I6, plate 25 will be positioned on the beam I2 as indicated in Fig. 1, and then the hinge pintle I3 will be passed through the bosses 21 and into the bore l5 of the bracket I6; the nuts 2| will be threaded on the threaded ends of the pintle l3 and to bear against the bosses 21, holding the parts in position as indicated in Fig. 1. The spring plate 25 is provided with depending lugs 28 for the reception of a pin 29 on which spring 30 is positioned, the said spring bearingat opposed ends against the beam I2 and bar I4 so as to normally urge the door I 0 upwardly to open position.

The spring 30 preferably is of insuflicient tension to raise the door II] but assists in raising the same so as to lighten the task of opening the door.

The spring 30 may be provided with a bar 3| connecting the arms thereof and with a roller 32 at the end of the spring which abuts the bar I4 so as to provide a smooth contact with the bar on the pivoting of the door In upwardly, as will be apparent from an inspection of Fig. 2.

The use of the spring plate 25 and its spring 30 is optional, in carrying out my invention, and may be dispensed with, in which case the nuts 2| (and their Washers 33) are threaded into abutment with the beam I2 instead of with the bosses 21 of the spring plate 25. The hinge bracket I6 may be formed from a casting or otherwise with the bore l5 passing through the interior of the bracket I6 or open at the upper surface thereof.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. A device for securing a door to a beam comprising a bracket adapted to be secured to said beam, said bracket having a longitudinally curved bore, said bracket having a slot intersecting said bore, and in open communication therewith, a curved pintle positioned in said bore and exposed in said slot and a member extending into said slot and being connected to the pintle.

2. A device for securing a door to a beam comprising a bracket adapted to be secured to said beam, said bracket having an elongated longitudinally curved aperture, a hinge pintle positioned in said aperture and of corresponding longitudinally arcuate outline therewith, and a bar secured to saiddoor and adapted to engage the pintle to pivotaliy secure the door to the beam.

3. In a device for securing a door to a beam, a bracket provided with a pair of spaced openings, an elongated longitudinally curved pintle positioned in said bracket with the ends of said pintle protruding through the spaced openings, means engaging said ends for remgvably securing the pintle in said bracket, and means for connecting the door with the pintle to pivotally secure the door to the beam.

4. A concealed hinge comprising a bracket hav ing a longitudinally curved pintle receiving bore, said bracket having a slot intersecting the bore, a longitudinally curved pintle arranged in the bore and having at least one end accessible from an exposed face of the bracket, and a member mounted on the pintle and arranged in said slot for pivotal movement on the curved pintle.

5. In a concealed hinge, a bracket having a longitudinally curved pintle receiving bore, a longitudinally curved pintle arranged in the bore and having both ends thereof protruding through the bracket, and means on said protruding ends for removably securing the pintle in the bore.

JOHN FAITHFULL. 

